Which southwestern state is known for its impressive collection of cliff dwellings, such as those at Cliff Palace?
  • Colorado
Which southwestern city is known for its bustling cultural scene and diverse food offerings, such as Sonoran hot dogs?
  • Tucson
Which southwestern state is home to the famous Lake Powell, located in the Glen Canyon National Recreation Area?
  • Utah
What impact do U.S. waterways have on tourism and recreation?
  • They provide opportunities for water-based tourism and recreation
What is a major environmental concern related to the maintenance of U.S. waterways?
  • Destruction of aquatic habitats during dredging
What is the role of barge traffic in transporting bulk commodities in the U.S.?
  • Barges transport large quantities of goods like grain, coal, and chemicals